Re: [PATCH] clean up FIXME in do_timer_interrupt

From: Lee Revell
Date: Fri Mar 11 2005 - 17:33:46 EST

On Thu, 2005-03-10 at 00:42 -0800, George Anzinger wrote:
> This patch changes the update of the cmos clock to be timer driven
> rather than poll driven by the timer interrupt function. If the clock
> is not being synced to an outside source the timer is removed and thus
> system overhead is nill in that case. The update frequency is still ~11
> minutes and missing the update window still causes a retry in 60
> seconds.

No replies yet. Are there any objections to this patch?

If not, it should be applied as it reduces the worst case latency of the
-RT kernel from about 90 to 40 usecs on my hardware.

The effect on mainline should be negligible.


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